function switch_img(id,s){
			var i = document.getElementById(id+"img");
			i.src = "images/tour-"+id+"-"+s+".jpg";
			}
			
function region_select(cnt,reg){
	cnt = cnt || "";
	if(cnt == "USA"){
		reg = reg || "AL";
	}else if(cnt == "Canada"){
		reg = reg || "AB";
		}
	
	cdn = new Array();
	usa = new Array();
	if(cnt){
		cx = document.checkoutform.country.options;
		l = cx.length;
		for(x=0;x<l;x++){
			if(cx[x].value == cnt){
				cx[x].selected = true;
				}
			}
		}
	s = document.checkoutform.country.selectedIndex;
	c = document.checkoutform.country.options[s].value;
	o = document.checkoutform.region.options;
	document.checkoutform.region.disabled = false;
	l = o.length;

	usa['AL'] = 'Alabama';
	usa['AK'] = 'Alaska';
	usa['AZ'] = 'Arizona';
	usa['AR'] = 'Arkansas';
	usa['CA'] = 'California';
	usa['CO'] = 'Colorado';
	usa['CT'] = 'Connecticut';
	usa['DE'] = 'Delaware';
	usa['DC'] = 'District of Columbia';
	usa['FL'] = 'Florida';
	usa['GA'] = 'Georgia';
	usa['HI'] = 'Hawaii';
	usa['ID'] = 'Idaho';
	usa['IL'] = 'Illinois';
	usa['IN'] = 'Indiana';
	usa['IA'] = 'Iowa';
	usa['KS'] = 'Kansas';
	usa['KY'] = 'Kentucky';
	usa['LA'] = 'Louisiana';
	usa['ME'] = 'Maine';
	usa['MD'] = 'Maryland';
	usa['MA'] = 'Massachusetts';
	usa['MI'] = 'Michigan';
	usa['MN'] = 'Minnesota';
	usa['MS'] = 'Mississippi';
	usa['MO'] = 'Missouri';
	usa['MT'] = 'Montana';
	usa['NE'] = 'Nebraska';
	usa['NV'] = 'Nevada';
	usa['NH'] = 'New Hampshire';
	usa['NJ'] = 'New Jersey';
	usa['NM'] = 'New Mexico';
	usa['NY'] = 'New York';
	usa['NC'] = 'North Carolina';
	usa['ND'] = 'North Dakota';
	usa['OH'] = 'Ohio';
	usa['OK'] = 'Oklahoma';
	usa['OR'] = 'Oregon';
	usa['PA'] = 'Pennsylvania';
	usa['RI'] = 'Rhode Island';
	usa['SC'] = 'South Carolina';
	usa['SD'] = 'South Dakota';
	usa['TN'] = 'Tennessee';
	usa['TX'] = 'Texas';
	usa['UT'] = 'Utah';
	usa['VT'] = 'Vermont';
	usa['VA'] = 'Virginia';
	usa['WA'] = 'Washington';
	usa['WV'] = 'West Virginia';
	usa['WI'] = 'Wisconsin';
	usa['WY'] = 'Wyoming';

	cdn['AB'] = 'Alberta'
	cdn['BC'] = 'British Columbia'
	cdn['MB'] = 'Manitoba'
	cdn['NB'] = 'New Brunswick'
	cdn['NL'] = 'Newfoundland'
	cdn['NT'] = 'NWT'
	cdn['NS'] = 'Nova Scotia'
	cdn['NU'] = 'Nunavut'
	cdn['ON'] = 'Ontario'
	cdn['PE'] = 'PEI'
	cdn['QC'] = 'Quebec'
	cdn['SK'] = 'Saskatchewan'
	cdn['YT'] = 'Yukon'

	


	var i = 0+0;
	if(c == 'Canada'){
		for(k in cdn){
			if(o[i] == null) {
				o[i] = new Option(i);
				}
			o[i].text = cdn[k];
			o[i].value = k;
			if(k == reg){
				o[i].selected = true;
				}
			i++;
			}
		end = i;
		i = o.length;
		while(i >= end){
			document.checkoutform.region.options[i] = null;
			i--;
			}
	}else if(c == 'USA'){
		for(k in usa){
			if(o[i] == null) {
				o[i] = new Option(i);
				}
			o[i].text = usa[k];
			o[i].value = k;
			if(k == reg){
				o[i].selected = true;
				}
			i++;
			}
		while(i < l){
			o[i] = null;
			i++;
			}
		}
	}